html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: #111;
  overflow: hidden;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

#game-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#game {
  display: block;
  /* Actual scaling logic (portrait canvas inside Poki's required 16:9
     container) belongs in main.js's resize handler, not hardcoded here. */
  background: #1a1a1a;
}